it isnt that they are weak but to get good performance out of them the Fiegao's run hot
I know that they run on the hot side. I have 8XL, MM, PQ setup in my MBX5, but now i want to get a MBX5T..... i have no heat issues at all, but a truggy is heavier, larger wheels.... so i guess there will be allot more heat in a truggy rather then a buggy.